<template>
  <div class="login_container">
    <div class="login_box">
      <div class="avatar_box">
        <img src="../assets/logo.png" alt="" />
      </div>
      <!-- 登录表单验证 -->
      <el-form ref="loginFormRef" :model="loginForm" :rules="loginFormRules" label-width="0px" class="login_form">
        <!-- 用户名 -->
        <el-form-item prop="username">
          <el-input v-model="loginForm.username" prefix-icon="iconfont icon-touxiang"></el-input>
        </el-form-item>
        <!-- 密码 -->
        <el-form-item prop="password">
          <el-input v-model="loginForm.password" prefix-icon="iconfont icon-suo" type=password>
          </el-input>
         </el-form-item>
        <!-- 按钮区 -->
        <el-form-item class="btns">
          <el-button type="primary" @click="login">登录</el-button>
          <el-button type="info" @click="resetLoginForm">重置</el-button>
        </el-form-item>
      </el-form>
    </div>
  </div>
</template>

<script>
export default {
  data() {
    return {
      //登录表单的数据绑定对象
      loginForm: {
        username: 'admin',
        password: '123456'
      },
      //表单验证规则
      loginFormRules:{
      //验证用户名是否合法
      username:[
         { required: true, message: '请输入登录名称', trigger: 'blur' },
         { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }
      ],
      //验证密码是否
      password: [
         { required: true, message: '请输入登录密码', trigger: 'blur' },
         { min: 6, max: 15, message: '长度在 6 到 15 个字符', trigger: 'blur' }
    
      ]
      }
    };
  },
  methods: {
    //点击重置按钮，重置
    resetLoginForm(){
    // console.log(this);
    this.$refs.loginFormRef.resetFields()
   },
   login() {
     this.$refs.loginFormRef.validate(async valid => {
      if(!valid) return;
      const {data: res} = await this.$http.post("login", this.loginForm);
      if(res.meta.status !==200) return this.$message.error('登录失败');
      this.$message.success('登录成功')
      console.log(res);
      window.sessionStorage.setItem('token', res.data.token);
      this.$router.push('/home');
   });
  }
  }
};
</script>

<style lang="less" scoped>
.login_container {
  background-color: #2b4b6b;
  height: 100%;
}

.login_box {
  width: 450px;
  height: 300px;
  background-color: #fff;
  border-radius: 3px;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);

  .avatar_box {
    height: 130px;
    width: 130px;
    border: 1px solid #eee;
    border-radius: 50%;
    padding: 10px;
    box-shadow: 0 0 10px #ddd;
    position: absolute;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: #fff;

    img {
      width: 100%;
      height: 100%;
      border-radius: 50%;
      background-color: #eee;
    }
  }
}
.login_form {
  position: absolute;
  bottom: 0;
  width: 100%;
  padding: 0 20px;
  box-sizing: border-box;
}
.btns {
  display: flex;
  justify-content: flex-end;
}
</style>
